`Date.getMonth` behavior differ slightly from the similar method as it return the index of the month and is 0-indexed, while the other method return ordinal values instead of index and don't have this distinction.

One could be tempted to run `${year}-${month}-${day}` and `${hour}:${minutes}:${seconds}` after the code in exemple to get iso formated date and time but the month would be off by one as iso month are 1-indexed, january being 1 and december being 12.

Adding a comment with the actual output put emphasis on this difference in behavior and might prevent people being surprised by that after the fact. The value chosen for the date is partly random. 2000 is the first year not starting with 19; January cause the month part to be 0 which should call attention to itself; 17 is high enough so it cannot be a month and I like it; 16 is in the 24h hour clock; 45 is high enough to not be confused with an hour; 30 is here for lack of imagination.